Vermont Gage 141218850 Class X Minus Pin Gage

Product Description

The VERMONT GAGE 141218850 is a Class X Minus precision pin gage used to check hole diameters, verify bore sizes, and calibrate measuring equipment in machine shops, quality labs, and manufacturing environments. Machined from tool steel with a 4 microinch surface finish, this gage measures 0.1885 inches in diameter and 2 inches in length with a tight minus tolerance of -0.00004 inches. Each unit ships with a Certificate of Accuracy backed by NIST traceability, making it suitable for use in calibration programs that require documented measurement standards. Machinists, metrologists, and quality technicians are the primary users.

This pin gage is suited for direct part gaging and calibration of measuring instruments in both production and inspection settings. Typical applications include go/no-go hole verification, gauge block calibration support, and incoming inspection of drilled or reamed bores where close tolerances are held. The 2-inch length provides adequate grip and handling clearance in most standard fixture setups. The 0.1885-inch nominal diameter targets precision bores in that size range common in close-tolerance machining work.

Key Features

• Class X Minus tolerance of -0.00004 inches for high-precision measurement applications
• Tool steel construction for wear resistance and dimensional stability
• 4 microinch surface finish for accurate, consistent contact with bore surfaces
• NIST-traceable Certificate of Accuracy included with each gage
• Compact 2-inch length suited for standard inspection and fixture use

Compatibility

Designed as a direct-measurement and calibration pin gage for use with any measuring system or inspection fixture requiring a 0.1885-inch nominal diameter reference standard.

Installation Notes

Pin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in its protective case when not in use to preserve the surface finish and dimensional integrity. Do not force the pin into bores that offer resistance, as this can damage both the gage and the part being checked. Periodic recalibration against a certified standard is recommended to maintain measurement traceability over time.